MAC下Hadoop2.7.2配置

一、检测JDK版本

1、java -version

k-MacBook-Pro:~ $ java -version

java version "1.8.0_60"

Java(TM) SE Runtime Environment (build 1.8.0_60-b27)

Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

2、若终端无法识别java命令，在百度或google上搜索jdk，一般安装路径为：

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home

二、下载Hadoop:http://hadoop.apache.org/releases.html

1、下载好hadoop后，解压到任意工程目录

export HADOOP_HOME=/Users/k/hadoop-2.7.2

2、进入hadoop配置目录

/Users/k/hadoop-2.7.2/etc/hadoop

3、vim hadoop-env.sh(配置hadoop环境)

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home

export HADOOP_HEAPSIZE=2000

export HADOOP_OPTS="-Djava.security.krb5.realm=OX.AC.UK -Djava.security.krb5.kdc=kdc0.ox.ac.uk:kdc1.ox.ac.uk"

4、vim core-site.xml(配置NameNode主机名与端口)

   

        hadoop.tmp.dir

        /Users/k/hadoop-2.7.2/tmp/hadoop-${user.name}

        A base for other temporary directories.

   

   

        fs.default.name

        hdfs://localhost:8000

   

5、vim hdfs-site.xml(配置HDFS的默认参数副本数)

   

        dfs.replication

        1

   

6、vim mapred-site.xml(配置JobTracker主机名与端口)

   

        mapred.job.tracker

        hdfs://localhost:9000

   

   

        mapred.tasktracker.map.tasks.maximum

        2

   

   

        mapred.tasktracker.reduce.tasks.maximum

        2

   

7、vim yarn-site.xml

   

        yarn.nodemanager.aux-services

        mapreduce_shuffle

   

8、安装HDFS并格式化namenode

k-MacBook-Pro:hadoop k$ hdfs namenode -format

16/07/03 01:35:54 INFO namenode.NameNode: STARTUP_MSG: 

/************************************************************

9、启动Hadoop

k-MacBook-Pro:hadoop k$ start-all.sh 

This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh

16/07/03 01:31:20 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

Starting namenodes on [localhost]

localhost: namenode running as process 1325. Stop it first.

localhost: starting datanode, logging to /Users/kirogi/hadoop-2.7.2/logs/hadoop-kirogi-datanode-kirogis-MacBook-Pro.local.out

Starting secondary namenodes [0.0.0.0]

0.0.0.0: secondarynamenode running as process 882. Stop it first.

16/07/03 01:31:27 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

starting yarn daemons

resourcemanager running as process 994. Stop it first.

localhost: nodemanager running as process 1077. Stop it first.

10、验证hadoop

k-MacBook-Pro:hadoop k$ jps

882 SecondaryNameNode

994 ResourceManager

1077 NodeManager

4312 Jps

1325 NameNode

或者

打开http://localhost:50070,进入hdfs管理页面

打开http://localhost:8088,进入hadoop进程管理页面